16545651577771 has 16 divisors (see below), whose sum is σ = 16594704741888. Its totient is φ = 16496687927200.

The previous prime is 16545651577717. The next prime is 16545651577781. The reversal of 16545651577771 is 17777515654561.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16545651577771 is a prime.

It is a super-2 number, since 2×16545651577771² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 16545651577697 and 16545651577706.

It is not an unprimeable number, because it can be changed into a prime (16545651577781) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1743294336 + ... + 1743303826.

It is an arithmetic number, because the mean of its divisors is an integer number (1037169046368).

Almost surely, 2^{16545651577771} is an apocalyptic number.

16545651577771 is a deficient number, since it is larger than the sum of its proper divisors (49053164117).

16545651577771 is a wasteful number, since it uses less digits than its factorization.

16545651577771 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13682.

The product of its digits is 216090000, while the sum is 67.

The spelling of 16545651577771 in words is "sixteen trillion, five hundred forty-five billion, six hundred fifty-one million, five hundred seventy-seven thousand, seven hundred seventy-one".